Metallic roofing.



No. 731,264. PATBNTED JUNEAls, 1903.. G. W. ARMSTRONG & ,H. ler.- MORTONMBTALLIG ROOPING.'

APPLICATION FILED FEB. 6, 1903. no MODEL.

ru: Nonms PETERS co, Putnam-mo, asuma-rou. D. c.

UNiTED STATES Patented June 16, 1903.

PATENT OFFICE.

GEORGE W. ARMSTRONG AND HENRY G. MORTON, vOF SHELBY, OHIO.

METALLIC ROO FING.

SPECIFICATION forming part of Letters Patent 1\T o. 731,264, dated J'une 16, 1903. Application filed February 6, 1903. Serial No. 142,180.(No model.)

To a/ZZ whom it may concern: l

Be it known that we, GEORGE 1V. ARM- STRONG and HENRY G. MoR'roN,citizens of the United States, residing at Shelby, in the county ofRichland and State of Ohio, have invented certain new and usefulImprovements in Metallic Roofing, of which the following is aspecification.

This invention relates to metal roofing, and has special reference to animprovement in a standing joint particularly designed forgalvanized-iron and steel-plate work for rooiing and analogous purposes.

To this end the invention primarily contemplates a simple, practical,and effectual type of standing joi'ntwhich provides an exceptionallystrong seam without the use of solder, besides reducing the possibilityof leakage to a minimum. A

In practice standing joints for the ordinary metal roofing are generallyformed by merely folding the edge portions of adjoining sheets or platesthat are turned up in the usual Way. Frequently under certainconditions, especially when accumulations of snow, rain, and ice occur,these commontypes of folded joints leak by reason of the water creepingthrough the folds of the standing joint. Another point of importance injoints of this character is the expensive use of solder, which is anitem of consider. ble expense. T he present invention obviates theseobjections to the ordinary standing joints for metal roofing-plates,while at the same time providing a construction of exceptional strengthparticularly adapted for galvanized-iron and steel-plate work, asstated. Y

Vith these and many other objects in View, which will more readilyappear as the nature of the invention is better understood, the sameconsists in the novel construction, combination, and arrangement ofparts, as will be hereinafter more fully described, illustrated, andclaimed.

The essential feature of the invention involved inthe relation of thejoint-anges of the upstanding members of the plates may be susceptibleto slight structural modification; but a preferred embodiment of theinvention is shownin the accompanying drawings, in which- Figure 1 is asectional view of a standing joint for roofing-plates, the line ofsection in cludiug one of the usual holddown-straps. Fig. 2 is a detailsectional view showing the first stage in the formation of one of theimproved standing joints contemplated by the present invention. Fig. 3is a view illustratin g the second stage in the folding of thejointflanges of the seam members. Fig. 4 is a sec tional view showing acompleted clenched joint, the .line of section being at a point whereone of the holddown-straps is not located.

Like reference-numerals designate corresponding parts throughout thesevei alfigures of the drawings.

In carrying out the invention there is no change involved in the methodof fastening the roof-plates in position upon a roof or other part of abuilding nor in the general form and extent of the plates Hence forillustrative purposes there is shown in the drawings aportion of twoadjoining roof-plates 1 and 2, preferably of galvanized iron or steel.The adjoining roof-plates 1 and 2 are provided at their adjacent andmeeting edges with the bent-up or upstanding seam members 3 and 4.-,respectively, which closely land flatly abut to provide a standing seamor joint disposed at substantially right angles to the plane of the bodyportions of the plates 1 and 2.

In the carrying out of this invention the essential and distinguishingfeature thereof resides in providing the upstanding seam member of oneof the roof-plates-as, for instance, the member designated by thenumeral 3 in the drawings-of a greater width than the adjacent abuttingmember 4 to produce beyond the edge of the latter. an extension 5, whichconstitutes a sealing and guard lip for the joint. With the seam membersdisposed in the relation indicated in Fig. 2, which'constitutes thefirst stage in thevformation of the joint,l the roofer folds or bendsboth seam members together in the same direction, so as to bring themdown at the same side of the standing seam or joint. This is plainlyshown in Fig. 3 of the drawings, and the bent-over or folded portions ofthe seam members constitute what may be properly termed foldedjoint-flanges G and 7, respectively, and even with the parts in thisposition the lip 5 of the seam member 3 projects beyond the adjacentedge of theseam member 4, sothat when the entire joint is tightlyclamped or clenched, l is claimed, and desired t0 be secured byLetthrough the medium of a heavy pair of iron roofingclamps, not onlythe joint-anges 6 and 7 are brought tightly against the adjaoent side ofthe standing seam, but the lip 5 is also bent against the standing seambeneath the adjacent edge of the joint-Harige 7, thus eifeetuallyclosing the joint and holding the same perfectly tight without the useof solder, while also eectually preventing leaking.

At such points as may be desired the ordinary holddown-straps S areemployed. Each holddown strap S is nailed to the roof or other partsupporting the roof-plates and is folded with and between thecooperating element 3 4 and 6 of the joint, and the upper end portion ofthe holddown-strap (designated by the numeral Qlis rebent entirely overand upon both sides of the completed joint, as shown in Fig. l,necessarily contributing materially to the strength and tightnessthereof.

From the foregoing' it is thought that the, construction, use, and manyadvantages of the herein-described rooiing will be readily apparent, andit will also be understood that changes in the form, proportion, andminor details of construction may be resorted to without departing fromthe spirit of the invention or sacrificing any of the advantagesthereof.

Having thus described the invention, what ters Patent, is

l. In a standing joint for metal roofing,

the adjoining roof-plates having upstanding abutting seam membersprovided with folded joint-flanges bent at the same side of the standingseam, and one of which members is of greater width than the other toproduce a sealing and guard lip bearing against the standing seam belowthe edge of the adjacent ilange.

2. In a standing joint for metal roofing, the adjoining roof-plateshaving upstanding abutting seam members provided with foldedjoint-ilanges bent at the same side of the standing seam, and one ofwhich members is of greater width than the other to produce a sealingand guard lip bearing against the standing seam below the edge of theadjacent flange, and a holddoWn-strap arranged between and folded withthe seam members and their folded joint-Hanges, said holddownstraphaving an upper portion bent entirely over and upon both sides of thejoint.

In testimony whereof we affix our signatures in presence of twowitnesses.

` GEORGE W. ARMSTRONG.

HENRY G. MORTON. Witnesses:

KITTIE SoNNANsTINE, T. J. GREEN.

